Sofa-bed



MM) R. LEHMANN.

SOFA BED.

No. 430,427. Patented June 1'7, 1890.

ag 1% M,

' NITED STATES PATENT OFFICE.

RUDOLF LEHMANN, OF OMAHA, NEBRASKA.

SOFA-BED.

SPECIFICATION forming part of Letters Patent No. 430,427, dated June 17, 1890.

Application filed August 15, 1839. Serial No- 320,86D. (No model.)

To all whom it may concern.-

Be it known that I, RUDoLF LEHMANN, a subject of the Emperor of Germany, and a resident of Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in Sofa-Beds; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in sofa-beds, the object being to provide novel means for adjusting the inclination of the back for the purpose of forming a rest for the head or back of the occupant.

The invention consists in the novel construction and combination of parts hereinafter more fully described and claimed.

In the accompanying drawings, Figure 1 represents an end view of a sofa-bed constructed according to my invention. Fig :2 is a transverse sectional view illustrating the relative position of the parts when forming a bed. Fig. is'a detail view of the mechanism for adjusting the back of the sofa-bed.

In the said drawings, the reference-numeral 1 designates the frame of the bed, consisting of the ends, bottom, and back portion supported on legs 2. To the rear of the frame, by means of hinge 4, is hinged the back 5, which is covered or upholstered, and attached to the rearof the back are curved or segmental rack-bars 6, provided with pins or studs 19, which are adapted .to travel in slots 18 in the curved guides or ways 7, attached to the ends of the frame, and which effectually serve to guide the rack-bars and retain them in position. Connected to the rack-bars and frame are springs S, the purpose of which is to provide a counterbalance for the back of the bed and prevent undue strain on the mechanism. Journaled in the frame is a crank 9, carrying pawlsor dogs 10 for engaging the rack-bars to adjust the inclination of the back, and to one end of the crank-shaft is attached a cord 11 for operating said shaft.

From this construction it will be understood that the pawls 10 on the crank-shaft engage the rack-bars, and can be operated to engage any of the teeth of the rack-bars, and thus hold the back at anyinclination desired.

The bed proper may be of any ordinary or suitable construction.

Having thus described my invention, whatl claim is In a sofa-bed, the combination, with the \Vitnesses:

JOSEPH VARNE, MATHEW NERAD. 

